Create Character Option Specification

Create Character Option Specification

Usage

characterOption(
  allowedValues = NULL,
  nullAllowed = FALSE,
  naAllowed = FALSE,
  expectedLength = 1
)

Arguments

allowedValues

Vector of permitted values. Defaults to NULL (any value allowed).

nullAllowed

Logical flag indicating whether NULL is permitted. Defaults to FALSE.

naAllowed

Logical flag indicating whether NA values are permitted. Defaults to FALSE.

expectedLength

Expected length of the option value. Use NULL for any length, 1 for scalar (default), or a positive integer for specific length.

Value

An S3 object of class optionSpec_character and optionSpec.